Dino kad No. 1862 wɔ 2 027 mu

Unktaheela

Din no ase: “from the Lakota word for a mythical water creature”1

Ɔdii: NamPlesiosɔɔKretasias AwieeɛNyansahu mu deɛ, ɔnyɛ dinosɔɔ

Unktaheela was a small, fast-swimming marine reptile that lived in the sea that once covered North America. It had a short neck, a big head with a long snout, and four flippers that worked like paddles. It was one of the smallest plesiosaurs ever found.2

Asɛm a ɛyɛ anigye: ɛpo mu aboa a ɔwea yi guaree berɛ a dinosɔɔ nantew asase so. Obiara frɛ wɔn dino, nanso na wɔyɛ mmoa a wɔwea abusua foforɔ.

Ɔtenaa ase

mfeɛ ɔpepem 84 kɔsi 72 a atwam3

Kretasias Awieeɛ

Wɔhunuu fɔsil wɔ

Wyoming and South Dakota, USA3 1

Tenten

2.3 kɔsi 2.6 m (7.5 kɔsi 8.5 ft)2

Ntɛmntɛm a ɛsen biara

bɛyɛ 27 km/h (17 mph)

Nsuguareɛ, nsusuiɛ

Berɛ bɛn na ɛtenaa ase?

Triasik

Jurasik

Kretasias

mfeɛ ɔpepem 252 a atwam20114566, ɔsoro ɛboɔ no

Na ne kɛseɛ yɛ sɛn?

Na ne tenten yɛ sɛn?

ne tenten te sɛ nkraman 2.5 firi hwene kɔsi duane tenten te sɛ kwadu 14 a wɔde abɔ toatoa soanka ɔbɛtumi aguare nsuguarebea kɛseɛ (50 m) tenten wɔ sikɛn 6.7 mu

Unktaheela kɛseɛ yɛ sɛn sɛ wode toto WO ho a?

Akontaa nko ara wɔ wo browser mu. Yɛnkora biribiara so, na yɛmmfa biribiara nkɔ baabiara.

Na ɛyɛ ntɛm sɛn?

Onipa a ɔnante bɛyɛ 5 km/h (3 mph)

Abofra a ɔte sakre so bɛyɛ 12 km/h (7 mph)

Unktaheela bɛyɛ 27 km/h (17 mph)

Ɔpɔnkɔ a ɔretu mmirika bɛyɛ 65 km/h (40 mph)

Kyiita bɛyɛ 100 km/h (62 mph)

nneɛma a ɛyɛ fɛ

Nsɛm a ɛyɛ anigye

Unktaheela is the smallest known adult polycotylid plesiosaur, measuring only about 2.3 to 2.6 metres long.2

It had bony ledges over its large eyes that may have shaded them from sunlight, like built-in sunglasses.2

Its skull was wide at the back and short behind the eyes, which helped it spot and catch prey.2

Unktaheela lived about 80 million years ago in the Western Interior Seaway, a shallow sea that split North America in two.2

Scientists think Unktaheela was a visual pursuit predator, meaning it chased its food using its sharp eyesight.2

The first fossil of Unktaheela was found in 1975 near Redbird, Wyoming, but it was not named until 2024.1 2

Yei yɛ Unktaheela mfonini a AI yɛeɛ, sɛdeɛ ebia na ɔteɛ. Kɔmputa na ɛyɛeɛ firi deɛ nyansahufoɔ nim mu. Ɛyɛ nsusuiɛ: ebia na aboa ankasa no nte saa, na obiara nnim ne kɔla ankasa.

Ma dino ho animdefoɔ

Nyansahu din: Unktaheela
Obi a ɔtoo din: Clark et al. 20243
Kuo: Plesiosɔɔ
Abusua / kuo kɛseɛ: Polycotylidae3
Nkyekyɛmu: Plesiosauria > Sauropterygia3
Abotan no mfeɛ: mfeɛ ɔpepem 84 kɔsi 72 (Campanian)3
Abotan nhyehyɛeɛ: Sharon Springs3
Aman: Amerika3
Fɔsil nkyerɛwee: 2 wɔ The Paleobiology Database mu3
Nhunumu: Unktaheela was named in 2024 by Robert O. Clark, F. Robin O'Keefe, and Sara E. Slack based on two fossils from Wyoming and South Dakota.3 1
Wɔda so gye ho akyinnye: Scientists are still debating exactly how Unktaheela used its unusual eye ledges and wide skull to hunt.2

Baabi a nsɛm no firi

Unktaheela (en.wikipedia.org)
A new genus of small polycotylid plesiosaur from the Upper Cretaceous of the Western Interior Seaway and a clarification of the genus Dolichorhynchops (sciencedirect.com)
Unktaheela in The Paleobiology Database (CC BY 4.0): mfeɛ, mmeaeɛ, abotan nhyehyɛeɛ, nkyekyɛmu.

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